Help please: acacia tree root suckers

I had a black acacia tree about 20 yrs old, the trunk ~14" across.
About 5 yrs ago I had to prune it heavily; I took off about 1/3 of the
crown during the growing season. Last year, before any growth I took
it all the way down. THe stump is till in place.
Ever since the initial heavy pruing and especially since the felling,
my yard is TOTALLY overtaken by root suckers. Little acacia trees ALL
OVER the yard, some 50-60 feet away from the stump, but mostly within
10-15 ft from the stump.
I've been using Sucker Stopper RTU but I can't keep up.
Any suggestions? Is there a systemic poison that I can apply to the
stump that'll get to the roots and suckers? Will a regular stump
killer (i.e. Bonide) work?
Thanks a heap,
-Zz
"Zz Yzx" rhymes with "physics"; or " Isaacs" if you prefer.
http://www.abandonedbutnotforgotten.com/zzyzx_road.htm

Roundup on the stump won't help - or if it does it's effect will be
limited.
Drill holes in the stump - about one every 4 to 6 inches in a grid
pattern - 3/4 to 1 inch diameter, and about a foot or so deep and pack
the holes with saltpetre (Pottassium Nitrate)Ammonium Nitrate works
as well - Calcium Nitrate would likely also work. Saltpetre can almost
totally decay a stump and major root systems in a matter of months.
If ammonium nitrate doesn't take the stump out, pour some diesel fuel
into the holes, insert a fuse, light and RUN!!!!!!!
DO NOT DO THIS ANYWHERE CLOSE TO BUILDINGS, OR
CIVILIZATION!!!!!!!!!!!! The bang will be large, and the destruction
widespread!!!

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